Innovative research in the field of construction has recently highlighted the importance of cementitious composites based on marine sand. These materials, particularly prized for their low carbon emissions, offer a sustainable alternative to current environmental challenges. The in-depth analysis of their mechanical performance and their cracking behavior is essential to optimize their use. By integrating a trilinear constitutive model of traction, it becomes possible to explore the different mechanical responses of these composites, opening the way to a better understanding of their characteristics and their longevity in constructive applications. This breakthrough represents real promise for sustainable infrastructure and innovation in the real estate sector.
Creation of low-carbon marine sand-based cementitious composites: An innovative approach
Sea sand-based cementitious composites represent a significant step forward towards a more sustainable construction sector. By integrating local materials and reducing carbon emissions, these composites offer mechanical performance promising, while minimizing their environmental impact. This article focuses on the analysis of the performance of these composites, their behavior in the face of cracking, as well as the development of a constitutive model. trilinear traction for a better prediction of their behavior under stress.
Analysis of the performance of cementitious composites based on marine sand
Cementitious composites, when reinforced with sea sand, present improved mechanical properties compared to traditional materials. Exploration of tensile, compressive and flexural strength demonstrates advanced behavior compatible with the requirements of modern structures. The tests carried out highlight not only a increased sustainability but also a reduction in production costs thanks to the use of local resources.
Cracking behavior of cementitious composites
One of the major challenges with cementitious materials is the development of cracks, often attributed to internal tensions during hardening. Cementitious composites based on marine sand integrate innovative additives, such as carbon nanotubes, which improve resistance to cracking. Through thoughtful design, we see a change in cracking mechanisms, thus making it possible to increase the longevity of the structures implemented.
Trilinear constitutive model of traction
To anticipate the performance of cementitious composites, it is essential to model their behavior under varied stresses. The constitutive model trilinear traction effectively represents the different phases of material behavior. This model describes three distinct zones: an elastic zone, followed by a plastic zone and finally, a rupture zone, thus allowing a better understanding of the interactions between the reinforcing fibers and the cement matrix. Implementing this model facilitates the implementation of composites in applications where reliability is crucial.
Conclusion on the future of cementitious composites
Research on cementitious composites based on marine sand is part of an innovative and sustainable dynamic for the construction sector. By combining performance, durability and respect for the environment, these materials open up new perspectives for responsible construction, responding to contemporary challenges.
- Theme: Low carbon cementitious composites
- Material type: Sea sand
- Objective: Analysis of mechanical performances
- Behavior: Resistance to cracking
- Model used: Tri-linear constitutive model of traction
- Importance: Sustainability and reduced environmental impact
- Mechanisms studied: Cracking process
- Innovations made: Optimization of mechanical properties
- Area of application: Sustainable construction
- Benefits: Reduction of carbon footprint
